Trolley.



J. RISBRIDGER.

TROLLEY.

APPLIOATION FILED MAY 12, 1911.

Patented May 6, 1913.

COLUMBIA FLANODRAPH C0,,WA5H1NHTON. D C

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* rra srrras ANT FFIQQ J OI-IN RISIBRIDGER, OF NORTH EAST, PENNSYLVANIA,ASSIGNOR OF FIFTY-FIVE ONE-- HUNDREDTI-IS T0 EUREKA TEMPERED COPPERWORKS, OF NORTH EAST, PENNSYI/ VANIA, A CORPORATION OF PENNSYLVANIA.

TROLLEY.

Specification of Letters Patent.

Patented May 6, 1913.

Application filed May 12, 1911. Serial No. 626,724.

To all whom it may concern Be it known that I, JOHN RISBRIDGER, acitizen of the United States, residing at North East, in the county ofErie and State of Pennsylvania, have invented new and usefulImprovements in Trolleys, of which the following is a specification.

This invention relates to trolleys and consists in certain improvementsin the con struct-ion thereof as will be hereinafter fully described andpointed out in the claims.

The leading object of the invention is to provide a trolley wheel with abearing which will assure its running true and at the same time assure aperfect contact for carrying off the current.

Other objects of the invention will appear from the specification andclaims.

The invention is illustrated in the accompanying drawings as follows:

Figure 1 shows a side elevation of a trolley, one side of the harp beingremoved to better show construction. Fig. 2 shows a central verticalsection through the wheel. Fig. 3 a plan view of the bearing block. Fig.f a plan view of one of the takeup lugs.

1 marks the trolley wheel. This is in the form of a ing with a largeopening 2 surrounded by the beveled or tapered bearing surface 3. Thering rests on the bearing block l, the bearing block having a surface toconform to the surface 3. The bearing block has preferably a cavity 5with the bearing bars 6 arranged across it. A felt 7 for retaininglubricant is arranged in the receptacle and carries the lubricant to thebearing surfaces. The bearing block has the lugs 8 which extend eachside of the block and these project into sockets 9 in the sides 10 and11 of the harp. These lugs 8 and sockets 9 are of irregular shape so asto lock the bearing block against turning. The bearing lugs 12 have thebeveled surfaces 13 which engage the trolley wheel at the bottom of theopening 2. These lugs have the extensions 14. The extensions areslidingly mounted in the sockets 15 in the side of the harp. Cotter pins17 are passed through the sockets and the sides 16 forlocking thebearing lugs in place. Springs 18 are arranged in the sockets back ofthe bearing lugs to crowd them forward into engagement. This engagementof the bearing lugs by reason of the beveled surfaces 13 assures a closefitting bearing for the trolley wheel at all times and takes up theWear, and at the same time makes such a connection with the trolleyWheel as to assure the taking up of the current at all times.

The side of the hub 11 is preferably hinged to the harp body at 19. Ascrew 20 extends through the side 10 and into the lug 21 in the side 11for securing the sides in position. A cotter pin 22 locks the screw inplace.

In order to renew the bearing block or bearing lugs, all that isnecessary is to remove the cotter pins 22, screw 20 and throw back theside 11. The bearing block is then removable from the socket 8 in theside 10 and the bearing lugs may be removed by removing the cotter pins17. In this way the bearing parts may be quickly renewed when desired.

What I claim as new is:

1. In a trolley, the combination of a trolley wheel having a centralopening therein; a bearing block arranged at the top of the openingsupporting the wheel; and a bearing lug of conducting material engagingthe wheel and acting as a brush for taking the current from the wheel ata part of the opening opposite the bearing block.

2. In a trolley, the combination of a trolley wheel having a centralopening therein; a bearing block arranged at the top of the openingsupporting the wheel, said block having a cavity opening toward thewheel fora lubricant; and a bearing lug of conducting material engagingthe wheel and acting as a brush for taking the current from the wheel ata part of the opening opposite the bearing block.

3. In a trolley, the combination of a trolley wheel having a centralopening therein; a bearing block arranged at the top of the openingsupporting the wheel, said block having a cavity opening toward thewheel for a lubricant; a felt in the cavity for carrying the lubricant;and a bearing lug of conducting material engaging the wheel and actingas a brush for taking the current from the wheel at a part of theopening opposite the bearing block.

1. In a trolley, the combination of a trolley wheel having a centralopening therein; a bearing block arranged at the top of the openingsupporting the wheel, said bearing block having a cavity opening towardthe wheel with supporting partitions extending across the cavity; and abearing lug of conducting material engaging the wheel and acting as abrush for taking the current from the wheel at a part of the openingopposite the bearing block.

5. In a trolley, the combination of a trolley wheel having a centralopening therein; a bearing block arranged at the top of the openingsupporting the wheel; and a yielding bearing lug of conducting materialengaging the wheel and acting as a brush for taking the current from thewheel at a part of the opening opposite the bearing block.

6. In a trolley, the combination of a trolley wheel having a centralopening therein; a bearing block arranged at the top of the openingsupporting the wheel; and bearing lugs of conducting material at eachside of the wheel and engaging the wheel and acting as a brush fortaking the current from the wheel at a part of the opening opposite thebearing block.

7. Ina trolley, the combination of a trolley wheel having a centralopening therein with tapering sides; a bearing block arranged at the topof the opening and supporting the wheel; bearing lugs of conductingmaterial engaging the wheel and acting as a brush for taking the currentfrom the wheel at a part of the wheel opposite the bearing block, saidlugs having bearing surfaces engaging the tapered surfaces of the wheelat the opening, one of said lugs being yielding; and a spring forforcing the yielding lug into engagement with the wheel.

8. In a trolley, the combination of a trolley wheel having a centralopening therein with tapering sides; a bearing block arranged at the topof the opening and supporting the wheel; bearing lugs of conductingmaterial engaging the wheel and acting as a brush for taking the currentfrom the wheel at the part of the. wheel opposite the bearing block,said lugs having bearing surfaces engaging the tapered surfaces of thewheel at the opening, both of said lugs being yielding; and springsforcing said lugs into engagement with the wheel.

9. In a trolley, the combination of a trolley wheel having a centralopening therein; a bearing block arranged at the top of the opening andsupporting the wheel; a hearing lug oi conducting material engaging thewheel and acting as a brush for taking the current from the wheel at apart of the opening opposite the bearing block; a harp;

and a lug and socket connection between the bearing block and the harp.

10. In a trolley, the combination of a trolcurrent from the wheel at apart of the opening opposite the bearing block; a harp; a lug and socketconnection between the bearing block and the harp; and a hinge for oneside of the harp.

11. In a trolley, the combination of a trolley wheel having a centralopening therein; a bearing block arranged at the top of the opening andsupporting the wheel; a harp supporting the bearing block, said harphaving a socket therein toward the bottom of the opening; and a bearinglug of conducting material slidingly mounted in the socket and engagingthe trolley wheel and acting as a brush for taking the current from thewheel at a part of the opening opslot and acting as a brush for takingthe current from the wheel; a pin extending through the walls of thesocket and the slot; and a spring in the socket forcing the lug intoengagement with the wheel.

18. In a trolley, the combination of a trolley wheel having a centralopening therein; a bearing block at the top of the opening andsupporting the wheel; a harp supporting the bearing block; sockets inthe harp opposite the bottom of the opening; bearing lugs of conductingmaterial slidingly mounted in the sockets, said lugs having slots andacting as a brush for taking the current from the wheel; pins extendingthrough the walls of the sockets and the slots; and springs in thesockets forcing the lugs into engagement with the wheel.

In testimony whereof I have hereunto set my hand in the presence oftwosubscribing witnesses.

JOHN RISBRIDGER.

WVitnesses H. E. Nonms, K. H. SI-IEARER.

Uopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

